Results 51 to 60 of about 148,419 (252)
Appell Transformation and Canonical Transforms [PDF]
SIGMA 7 (2011), 072, 34 pages, 2011 The interpretation of the optical Appell transformation, as previously elaborated in relation to the free-space paraxial propagation under both a rectangular and a circular cylindrical symmetry, is reviewed. Then, the caloric Appell transformation, well known in the theory of heat equation, is shown to be amenable for a similar interpretation involving
arxiv +1 more source
Quantum Canonical Transformations: Physical Equivalence of Quantum Theories [PDF]
Phys.Lett.B305:67-70,1993, 1993 Two quantum theories are physically equivalent if they are related, not by a unitary transformation, but by an isometric transformation. The conditions under which a quantum canonical transformation is an isometric transformation are given.
arxiv +1 more source
Hardware structure for Walsh-Hadamard transforms
Electronics Letters, 1998 An efficient hardware structure is reported for the Walsh-Hadamard transform. Based on the radix-2 algorithm, the structure can be implemented with shift registers and controllable adder/subtracters for high processing throughput. Such an implementation is particularly suited to applications that require real-time operations and interface directly with
Barry G. Evans, Guoan Bi
openaire +2 more sources
Efficient quantum amplitude encoding of polynomial functions [PDF]
QuantumLoading functions into quantum computers represents an essential step in several quantum algorithms, such as quantum partial differential equation solvers.
Javier Gonzalez-Conde +3 more
doaj +1 more source
Stress Detection using EEG Signal Based on Fast Walsh Hadamard transform and Voting Classifier
, 2021 Mental stress is currently a significant concern, especially among the young. Stress adversely affects the overall performance of people’s work, and in certain cases, can even cause serious health issues. Everyone experiences stress in life.
Navdeep Shakya, R. Dubey, L. Shrivastava
semanticscholar +1 more source
IEEE Access, 2022 Some conventional transforms such as Discrete Walsh-Hadamard Transform (DWHT) and Discrete Cosine Transform (DCT) have been widely used as feature extractors in image processing but rarely applied in neural networks.
Joonhyun Jeong +3 more
doaj +1 more source
Moutard type transformation for matrix generalized analytic functions and gauge transformations [PDF]
Russian Math. Surveys 71:5 (2016), 970-972, 2016 A Moutard type transformation for matrix generalized analytic functions is derived. Relations between Moutard type transforms and gauge transformations are demonstrated.
arxiv +1 more source
Sketched and Truncated Polynomial Krylov Methods: Evaluation of Matrix Functions
Numerical Linear Algebra with Applications, Volume 32, Issue 1, February 2025.ABSTRACT Among randomized numerical linear algebra strategies, so‐called sketching procedures are emerging as effective reduction means to accelerate the computation of Krylov subspace methods for, for example, the solution of linear systems, eigenvalue computations, and the approximation of matrix functions.
Davide Palitta +2 more
wiley +1 more source
Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices
Advanced Quantum Technologies, Volume 8, Issue 1, January 2025.Open quantum systems exhibit complex dynamics that can be simulated on quantum computers to provide physical insights into their behavior. This work proposes a new method for simulating these systems that reduces the effect of noise and errors on modern quantum hardware.
Colin Burdine, Enrique P. Blair
wiley +1 more source
Design and Implementation of a Speller based on EMG Signal
International Journal of Computational Intelligence Systems, 2017 A speller is a communication device designed for those suffering from neuromuscular disorders having difficulty to speak. An EMG based design is proposed which uses eye blinks for character selection that offers high accuracy and more comfort to the user.
P M Shyam Prasad +3 more
doaj +1 more source